how fast should a man weighing 600N run so that his kinetic energy is 750J given g=10m/s2

Question

this question has been asked in my third pre board paper so plss ans my question...it is related to work and energy chapter

Answer 1

Force = mass * acceleration

F = mg

600 N = m * (10 m/s²)

600/10 = m

60 kg = m

 

Kinetic Energy = (1/2)*mass* speed²

750 = (1/2)*(60 kg)*speed²

 

Solve for speed.